region] (in Japanese). Ebisukosyo. Retrieved May 17, 2024. Okamoto Ryoichi (岡本亮一) (1982). 日本城郭史研究叢書 第8巻 大坂城の諸研究 [Japanese Castle History Research Series Vol
Overdrive before merging into Gobnu (Giga). They are voiced by Ryōichi Tanaka (田中 亮一, Tanaka Ryōichi). Giant Mechaloid Gobnu (Giga) (巨大機械人形(メカロイド) ゴブニュ(ギガ), Kyodai